Matrix-punching mechanism.



UNITE srfrns PAT FFX@ FExGUs a". winsonornnooxLxn, NEW YORK, AssIeNoR'ro MERGENTHALER LINoTYrF. COMPANY, a conPonaTIoN or NEW YORK.

mammPnNcHING MECHANISM.

Specification of Letters Patent.

-ipucationaiegi November ai, 1911, "seriaiiva 662,099.

ToaZZ 'whom may concer-n:

Be it known that l, FERGUS F. WILSON, of the borough of Brooklyn, countyof Kings,

- linctypes or line casting machines of the character re resented inLetters Patent of the United states bla-436,532; these matricesconsisting each .of a ilat plate of brass,

t one ofthe finished Amatrices. Fig; a verla'nd State of New York, haveinvented aor equivalent material, having a female chari `.a-cter ormatrix proper punched in one edge,v

- the-thickness of the matrix being slightly that the walls at the sideso f the characters are very thin.. The punch ofhardened steel to he castin the matrix. The matrixl blank 1 greater than the Width of thecharacter,so

is an exact replicaV of the letter or character is ccnnedvbetween two-supporting jaws while the punch is being driven downward the matrixtoowupward-'into and {il-l the tical transverse section on the line 4 4,Fig.

Patenten nec. i, 191e.

1, showing vthe, matrix ing-position previousI to the descent of thepunch.' Fig. 5 is' ay ver-v tical sectlcn online 5 5, Fig.li-..-"lf`-ig. y6 is a sectlonal view on the saine line as Fig. 4,

with the punch seated in the matrixa'nd "the, latter expanded-`intothecavities ofthe' co'nlim-ng Jaws. Fig. 7 is a perspectiveviewof one-ofthe coninin-gjaws.. Fig, S- is a perspective view of a matrix blank asit appears Whenreleased from the jaws Fig. 9 is a vperspective view ofthe jaw infa modified form..v

In the drawings, A represents-aMergenthaler matrix of well known form,consisting of 'aiiat 'plate having thel character or matrix, a,"punched-in oneedge; Itis lto vthe means for forming this characterthatmy invention relate f B represents'a portionvof the framework fof apunch press withA a vertically recipro-v eating head or ram', inthelower en d -of which'the-pi'inch D ,fis secured.A This punch therein. Inpracticetwo diiiiculties. are encavities or 4counters in th'epunch; and7 ond, 'the liabilityof the punchnot properlyl entering the metal and:therefore distorting or'elcngating theV facetoff the matrix. The

matrices must be made with extreme-precision.l .It the meta-l.ailsto'iill the counter having shallow .cavities .will be accumulated,and

ofthe punch the r'na'trix will producetype in wh-ieu the ink carried tothe pa per duringthe. 'printingA 'opiuation,ll

rl`he aim of my invention ,isto overcomethe diiiicult'ies named ,andto`l this end it 'corijaws-the faces of whichare provided with*'andfsuppo'rted between thetwo jaws', as., shown in Figs. 1 and 4. The'j aws, instead .v 1

grooves or other recessesjinto which-the body.an d holds the edge of the:matrix up -so that the metal-'will be' more eiectually A carried intothe counter or counters inthe:

Referring to the-drawings: Figure 1 1s a vives addij-4 ie matrix-.tal-.grooves or cavities, e.' Whenthe unchthe metalzof the matrix hason its lower-end.j protruding letter o rvv character, d, exactlylike-jan: ordinary printerstype.

. It will loe-understood that many'of'theletters such as B, O',' p,f etc., have a-centralre- 4cess or recesses, techn1callylmownas-coun--ters. :lt is the filling of these counters-by faces, between which thematrix,.s'tanding on edge, is confined, beneath' the punch D, dur'- ling'the punching operation. i The jaw E is seated firmly in the hed of thepress, and

blank' is inserted 'it' may-be firmly conned surfaces i as heretofore,are' -pror fid .ed,l as

shown in4 Figs. 4, 5, 6, 7, etc.,-with horizondescends end displaces themetal, the' atter perspective view f representing outline a..

matrix-'punchin' machine providedwitlmy j used therein. Fig. 3 isa-perspeetiveview of- Hows; outward into" thecavities e,'in the mannershown in' Fig, 6, thereby fo ingon the sides-of the matrix theprojecting ribs to the'b'odv of metal, so that the sinking of towhichmyinvenf -tion isjfparticularly directed.

the jaw Estate-2i in a sli-de G. narrated-by a i link H, and-lever I, sothat vafterlthe matrix Ylock with thej'aw and 'aid in `giving support iital compelled to flow upward into the counter cavity inthe punch, asshown in Fig. (S.

The essence of the invention lies inproriding conlining jaws withcavities or re cesses ot any :toi-in into which the metal may tion' inorder to interlock with the jans. li.

ineans o' the yerticalscrews H, and the top plat-e lf.; is commonlysecured upon each jaw by the screws, as shown. rlhis plate, forining inelieet a portion of the iaw, is used in order that it may be cheaplyreplaced by another plate, avoiding the replacingr otthe entire jaw, inthe event ot' its being mutilated by accidental contact with the punch,as occasionaily happens in practice. in effect the tace of the jaw isremovable independently oil the lower portion, so that it may bereplaced or reversed if mutilated.

Having described my invention what ll claim is: l

l. ln a matrix punching mechanism, the combination ot a punch, andconfining jaws for holding the matrix firmly in position, said jaivshaving fiat 'opposing faces to lie `flatly against the matrix, and said,jaivs be ing formed in their faces .with recesses for the purposedescribed.

Q. ln a matrix punching mechanism, the combination of a punch, andconlininp; jans for supporting the inatrixF with its edge en posed tothe action oit the punch, the said jaws having 'Fiat opposing 'faces tolie iiatly against the side faces of the matrix, and said jawsbeingforrcd with recesses of such character as to W the metal displacedby 'the punch to liow transversely of the path ci? moveinentof thepunch.

En a matrix punchingmechanism, the combination of a punch, and confiningjaws Yfor holding' the inatrif; firmly in position, said javvs having'fiat opposing 'liuc/es to lie flatly against the side faces of thematrix,

and said jaws being;` formed with longitudinal grooves in theiropposing` :tacos tor the purpose described.

.in a matrici punching mechanism, the combination with a punch adaptedact on the edge oi the matrix, of opposing" jaws iori'ifcd with flatclamping Ylaces adapted to lie yflatly against the sides of the matrix,and acting to conine the same againstgeneral lateral expansion, one ofsaid jaws being provided with recesses in its clamping face; whereby themetal of the matrix will, in the action' ol2 the punch,'be`locallydisplaced, and entering said recesses will -pre'vent the 'edge of thematrix ron sinking avvayroin the punch.

^ In a 'matrix punching` mechanism, the combination of a punch,andainatrix conining jaw located in its path of movement,

the said jaw being provided with a removable protective plate inposition to be en gagged by the punch in the event of the latteraccidentally advancing' beyond its normal throw.

6. ln a matrix punching mechanism, the

'combination Vith a punch, 'of a 'matrix conlininff 'aw located intheoathA of movement 'of the punch. said jaw comprising a main body portionha ving a clamping tace adapted toact on the matrix, and a protectiveplate detachably applied to the body por--

